Adsorption of uranium (VI) from mixed chloride-fluoride solutions by anion-exchange resins
Experimental data are reported and discussed concerning the adsorption of uranium from 0.025 M solutions of UO/sub 2/Cl/sub 2/, containing HCl, HF, and NH/sub 4/Cl over a wide concentration range, using anion-exchange resins of varying basicities. UV and IR spectroscopic studies were conducted in order to clarify the chemical mechanism of uranium adsorption. Adsorption isotherms for all of the ion-exchange resins studied are convex in shape and can be described by the following equations: log K/sub d/ = a + b (-log C/sub e/), and log A = a + (b + 1) log C/sub e/, where A is the adsorptivity in mmole U/g; K/sub d/ is the distribution coefficient in mg/liter; and C/sub e/ is the equilibrium concentration of U in mmole/ml. General mathematical models have been obtained to describe the adsorption process; these consist of a system of regression equations derived from the results of a complete 2/sup 3/ factorial study.
- OSTI ID:
- 6330211
- Journal Information:
- Sov. Radiochem. (Engl. Transl.); (United States), Vol. 29:4; Other Information: Translated from Radiokhimiya; 29: No. 4, 529-534(Jul-Aug 1987)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Sorption of uranium(VI) ions from hydrochloric acid and ammonium chloride solutions by anion exchangers
Uranium (VI) ion exchange on nitrogen-phosphorus-containing polyampholytes in chloride-fluoride solutions
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
URANIUM COMPOUNDS
ADSORPTION
ION EXCHANGE
ADSORPTION ISOTHERMS
AMMONIUM CHLORIDES
ELECTROLYTES
EQUILIBRIUM
HYDROCHLORIC ACID
HYDROFLUORIC ACID
MATHEMATICAL MODELS
ORGANIC ION EXCHANGERS
QUANTITY RATIO
REGRESSION ANALYSIS
RESINS
SORPTIVE PROPERTIES
ULTRAVIOLET SPECTRA
URANYL CHLORIDES
VALENCE
ACTINIDE COMPOUNDS
AMMONIUM COMPOUNDS
AMMONIUM HALIDES
CHLORIDES
CHLORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
ION EXCHANGE MATERIALS
ISOTHERMS
MATERIALS
MATHEMATICS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
POLYMERS
SORPTION
SPECTRA
STATISTICS
SURFACE PROPERTIES
URANYL COMPOUNDS
050400* - Nuclear Fuels- Feed Processing
400201 - Chemical & Physicochemical Properties